In a Classic Experiment,psychology Students Were Assigned to Work Either

Multiple Choice

In a classic experiment,psychology students were assigned to work either with "bright" rats or with "dull" rats,described as such by the experimenter.In one task involving maze-running speed,students working with "bright" rats were more likely to stop timing early,as soon as the rat approached the goal box.This unintentional measurement error illustrates how:

A) expectations can influence observations.
B) observations can influence measurement.
C) expectations can influence reality.
D) observations can influence reality.